/usr/include/libnova/solar.h is in libnova-dev 0.16-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 | /*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) 2000 - 2005 Liam Girdwood
*/
#ifndef _LN_SOLAR_H
#define _LN_SOLAR_H
#include <libnova/ln_types.h>
#define LN_SOLAR_STANDART_HORIZON -0.8333
#define LN_SOLAR_CIVIL_HORIZON -6.0
#define LN_SOLAR_NAUTIC_HORIZON -12.0
#define LN_SOLAR_ASTRONOMICAL_HORIZON -18.0
#ifdef __cplusplus
extern "C" {
#endif
/*! \defgroup solar Solar
*
* Calculate solar ecliptical/equatorial coordinates for a given julian date.
* Accuracy 0.01 arc second error - uses VSOP87 solution.
*
* All angles are expressed in degrees.
*/
/*! \fn int ln_get_solar_rst_horizon(double JD, struct ln_lnlat_posn *observer, double horizon, struct ln_rst_time *rst);
* \brief Return solar rise/set time over local horizon (specified in degrees).
* \ingroup solar
*/
int LIBNOVA_EXPORT ln_get_solar_rst_horizon(double JD,
struct ln_lnlat_posn *observer, double horizon, struct ln_rst_time *rst);
/*! \fn int ln_get_solar_rst(double JD, struct ln_lnlat_posn *observer, struct ln_rst_time *rst);
* \brief Calculate the time of rise, set and transit for the Sun.
* \ingroup solar
*/
int LIBNOVA_EXPORT ln_get_solar_rst(double JD, struct ln_lnlat_posn *observer,
struct ln_rst_time *rst);
/*! \fn void ln_get_solar_geom_coords(double JD, struct ln_helio_posn *position);
* \brief Calculate solar geometric coordinates.
* \ingroup solar
*/
void LIBNOVA_EXPORT ln_get_solar_geom_coords(double JD,
struct ln_helio_posn *position);
/*! \fn void ln_get_solar_equ_coords(double JD, struct ln_equ_posn *position);
* \brief Calculate apparent equatorial coordinates.
* \ingroup solar
*/
void LIBNOVA_EXPORT ln_get_solar_equ_coords(double JD,
struct ln_equ_posn *position);
/*! \fn void ln_get_solar_ecl_coords(double JD, struct ln_lnlat_posn *position);
* \brief Calculate apparent ecliptical coordinates.
* \ingroup solar
*/
void LIBNOVA_EXPORT ln_get_solar_ecl_coords(double JD,
struct ln_lnlat_posn *position);
/*! \fn void ln_get_solar_geo_coords(double JD, struct ln_rect_posn *position)
* \brief Calculate geocentric coordinates (rectangular)
* \ingroup solar
*/
void LIBNOVA_EXPORT ln_get_solar_geo_coords(double JD,
struct ln_rect_posn *position);
/*! \fn double ln_get_solar_sdiam(double JD)
* \brief Calculate the semidiameter of the Sun in arc seconds.
* \ingroup solar
*/
double LIBNOVA_EXPORT ln_get_solar_sdiam(double JD);
#ifdef __cplusplus
};
#endif
#endif
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